He was your friend that you have a crush on. He rejected you because of the gap in your age. He was 26 while you're 17 years old. That's understandable.

But still you start distant from him because you wanted to move on.

One day, you saw him with a girl, kissing in your neighbourhood. You were hiding behind the brick wall.

The girl was your classmate. The same age as you, which means he just used that excuse to reject you in a subtle way.

You were crying and cupped your mouth.